65
SKOPE VF Series
Replacement Procedures
Service Manual
High Pressure
Switch
The unit is fitted with an automatic reset pressure switch. If the pressure
switch is triggered, the electronic controller will stop the compressor for
approximately 20 minutes after the pressure has reduced, then
automatically switch it back on. The IA alarm will be displpayed while the
pressure switch is active.
The high pressure switch is particularly important for cabinets in high
ambient conditions, as the purpose of the pressure switch is to protect the
refrigeration system from damage due to over-pressure (high temperature)
conditions.
Conditions that may activate the high pressure are:
High ambient conditions (ensure adequate ventilation)
Lack of refrigeration ventilation
Blocked or restricted condenser
Faulty condenser fan motor.
Poor refrigeration unit sealing.
The pressure switch is located outside the unit junction box near the
condenser assembly.
High pressure switch
Figure 10: High pressure
switch
